Yellow-winged Bat (Lavia frons) lives in tropical savanna across Sub-Saharan Africa. It feeds on insects and fruit. Its conservation status is Least Concern.
Fascinating facts about the Yellow-winged Bat
- At just 58-80 mm long and weighing only 28-36 g, the yellow-winged bat fits on a fingertip, yet its wings stretch an average of 36 cm, about the length of a school ruler. Females are a shade larger than males, giving the species a subtle size dimorphism that hints at different energetic needs during pregnancy. This tiny body-mass combined with a relatively large wing surface lets it hover and launch rapid attacks on insects while expending minimal energy, a key advantage for a nocturnal hunter in open savannahs.
- Yellow-winged bats live across sub-Saharan Africa, from Gambia in the west to Ethiopia in the east and down to northern Zambia, occupying low-lying savannas and woodlands below 2,000 m. They favor acacia trees and thorn bushes near water, where open spacing lets them spot prey and predators.
- Unlike its false-vampire cousins, this bat eats only insects, catching both soft- and hard-bodied prey from tiny termites to large beetles. It perches silently, listens, then launches a horizontal strike when an insect flies by, sometimes attacking prey as high as 30 m or as low as 1 m above ground. This sit-and-wait strategy still controls insect populations that would otherwise defoliate the acacia trees it roosts in.
- Yellow-winged bats are monogamous, forming pairs that roost no more than 1 m apart in a primary tree and a secondary "peripheral" tree. The male guards the peripheral roost while the female feeds, and each day they reunite at the primary roost before evening. Their heads can swivel 225°, and they rotate their ears to watch for predators, a vigilance that reduces predation risk from snakes, hawks and even green mambas.
- Females carry a single pup for about three months, giving birth at the end of the dry season in Zambia (October) or at the start of the long rains in Kenya (April). The newborn clings to false nipples near the mother's anus, then stays with the mother, and is weaned at around 55 days.
Sources
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At a glance
RangeSub-Saharan Africa
HabitatTropical savanna
DietInsects and fruit
About the Yellow-winged Bat
In the warm, golden light of dusk, the yellow-winged bat unfurls its vibrant wings, a splash of sunset hues against the darkening sky, as it takes to the air with a gentle, fluttering motion. With an effortless elegance, it dances among the trees, its high-pitched calls piercing the evening air as it pursues the insects that will sustain it through the night. As it flits and weaves, its bright yellow wings beating at a hypnotic pace, this tiny, unassuming creature proves itself a master of the twilight realm.
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